baber/WOPTO huggingface dataset:
Patent CA-2210313-A1 (CA)
Title: Method of and apparatus for echo reduction in a hands-free cellular radio communication system
Inventor: ZAK ROBERT A
IPC: H04Q7/32
Filed: 1996-01-19
Abstract: A method and apparatus for reducing the echo in a hands-free digital cellular communication system are presented.      Acting upon speech signals being presented in the downlink, uplink speech frames generated by the hands-free communication device are attenuated to prevent the downlink speech signals from being transmitted at full volume back on the uplink as an echo. Added to the attenuated uplink speech frame is a noise frame generated by the hands-free communication device, which provides a consistent level of background noise to the person at the other end of the call.      The noise codeword is further randomly ordered to prevent any modulative effects from the process.
Patent CA-2210724-A1 (CA)
Inventor: CHIZZONITE RICHARD ANTHONY
IPC: C12N5/10
Filed: 1996-01-17
Abstract: Le présent brevet concerne des polynucléotides codant pour une protéine accessoire du récepteur de l'Il-1 humain, de la protéine accessoire du récepteur de l'Il-1 isolée, et des anticorps dirigés contre la protéine accessoire du récepteur de l'Il-1. Cette protéine est particulièrement utile pour prévenir l'inflammation due à l'action de l'Il-1.
Patent CA-2211335-A1 (CA)
Title: Hand saw/scabbard assembly and scabbard therefor
Inventor: ERISOTY GREGORY J
IPC: B26B29/00
Filed: 1997-07-24
Abstract: A hand saw scabbard seats the saw blade of the hand saw with the handle at one end abutting its open end.  The elongated molded scabbard has a generally rectangular cross section formed by spaced face walls and relatively short side walls extending therebetween and an end wall at one end thereof.  The other end of the housing is open to provide the entrance into the cavity which is dimensioned to seat the saw blade.  The inner surface of at least one of the face walls has integrally formed bosses thereon which bear upon the surface of the saw blade seated in the cavity to frictionally retain it.
Patent CA-2215060-A1 (CA)
Inventor: FEIT MICHAEL D
IPC: B23K26/36
Filed: 1997-01-06
Abstract: La présente invention concerne un procédé et un dispositif d'ablation rapide, efficace, précise et non traumatisante de tissus biologiques, par utilisation d'un système laser (10) produisant des impulsions de durée ultracourte avec des cadences élevées de répétition des impulsions. La durée de chaque impulsion laser est de l'ordre d'environ 1 fs (1 femtoseconde) à moins de 50 ps (50 picosecondes) de façon que le dépôt d'énergie se limite à une faible profondeur et se réalise avant que ne puissent se produire des phénomènes de conduction thermique et de mouvement hydrodynamique relativement importants, causes accessoires de lésions. L'épaisseur de substance enlevée par chaque impulsion est de l'ordre d'environ 1 micromètre. En outre, les effets thermiques et mécaniques minimum liés à ce procédé d'ablation autorisent un fonctionnement utilisant une cadence élevée de répétition atteignant la zone des 10 à plus de 1000 Hertz, ce qui permet des taux élevés d'enlèvement de matière. L'énergie de l'impulsion laser est faible par rapport au volume de tissu enlevé. L'une des réalisations de l'invention concerne l'utilisation, comme source, d'un laser amplifié, de type saphir dopé au titane, à impulsions comprimées.
Patent CA-2218913-A1 (CA)
Title: Substituted oximes, hydrazones and olefins as neurokinin antagonists
Inventor: PIWINSKI JOHN J
IPC: A61K31/501
Filed: 1996-05-01
Abstract: Compound represented by structural formula (I) or a pharmaceutically acceptable salt thereof, wherein: a is 0, 1, 2 or 3; b, d and e are independently 0, 1 or 2; R is H, C1-6 alkyl, -OH or C2-C6 hydroxyalkyl; A is an optionally substituted oxime, hydrazone or olefin; X is a bond, -C(O)-, -O-, -NR6-, -S(O)e-, -N(R6)C(O)-, -C(O)N(R6)-, -OC(O)NR6-, -OC(=S)NR6-, -N(R6)C(=S)O-, -C(=NOR1)-, -S(O)2N(R6)-, -N(R6)S(O)2-, -N(R6)C(O)O- or -OC(O)-;  T is H, phthalimidyl, aryl, heterocycloalkyl, heteroaryl, cycloalkyl or bridged cycloalkyl; Q is -SR6, -N(R6)(R7), -OR6, phenyl, naphthyl or heteroaryl; R6a, R7a, R8a, R9a, R6 and R7 are H, C1-6 alkyl, C2-C6 hydroxyalkyl, C1-C6 alkoxy-C1-C6 alkyl, phenyl or benzyl; or R6 and R7, together with the nitrogen to which they are attached, form a ring; R9a is R6 or -OR6; Z is morpholinyl, optionally N-substituted piperazinyl, optionally substituted (a), or substituted (b); g is 0-3 and h is 1-4, provided the sum of h and g is 1-7; wherein aryl, heterocycloalkyl, heteroaryl, cycloalkyl and bridged cycloalkyl groups are optionally substituted; methods of treating asthma, cough, bronchospasm, inflammatory diseases, and gastrointestinal disorders with said compounds, and pharmaceutical compositions comprising said compounds are disclosed.
Patent CA-2228796-A1 (CA)
Title: Signal transmitting method, mobile station device, and base station device for cdma mobile communication system
Inventor: UEBAYASHI SHINJI
IPC: H04W88/02
Filed: 1997-06-18
Abstract: A CDMA communications system that can shorten a delay time until the establishment of traffic, and prevent excessive transmission power. Although transmission request signals RQ1, RQ2, RQ3, ... sent from mobile stations through a common channel undergo only open loop power transmission control, and hence have large fluctuations in their received levels, their interference amount to message signals can be kept low because their received power is averagely about 1/a of that of the message signals MSG1, MSG2, MSG3, ... The message signals are sent from the mobile stations in accordance with the power transmission control bits contained in a forward link signal ACK sent from the base station, followed by closed loop power transmission control.      This enables the received level fluctuations at the base station to be kept low. Closed loop transmission power control of a reverse link signal RQ can further reduce the interference amount, in which case the power transmission control signal can be removed from the forward link signal ACK transmitted from the base station.
Patent CA-2229688-A1 (CA)
Inventor: PERNELLE JEAN ALEXIS
IPC: H01R9/26
Filed: 1998-02-05
Abstract: Dispositif de connexion électrique comprenant un boîtier isolant contenant des contacts 10 pour l'enfichage d'embouts 18 fixés aux extrémités des conducteurs 19 à connecter. Le boîtier est divisé en deux parties 1, 2 comportant des moyens 21, 22, 23, 24, 25, 26, 43, 44 pour maintenir les deux parties 1, 2, emboîtées l'une dans l'autre, dans une première position dans laquelle les embouts 18 sont immobilisés (moyens d'encliquetage 27) sans être enfichés dans les contacts 10, et dans une deuxième position dans laquelle les embouts 18 sont enfichés dans les contacts 10 et les moyens d'encliquetage 27 sont verrouillés (moyens de verrouillage 11).
Patent CA-2230616-A1 (CA)
Inventor: COHEN WILLIAM
IPC: A42B3/28
Filed: 1996-08-23
Abstract: The disclosed filtration system (10) filters both entering air and exiting air. A primary element of the air filtration system is the unitary helmet member (12) which fits over a user's head, and has a rear aperture (14), a front aperture (18), and a middle aperture (16). A hood filter (34), and a face shield (36) fit over the unitary helmet member.
Patent CA-2232828-A1 (CA)
Inventor: TAKAHASHI TOHRU
IPC: C12N15/85
Filed: 1998-03-20
Abstract: The invention provides humanized anti-human Fas antibodies capable of inducing apoptosis in cells expressing Fas and which are useful in the treatment of autoimmune disease and chronic rheumatoid arthritis. In addition, the invention provides DNA encoding the variable regions of the H and L chain of such antibodies and methods for humanizing antibodies.
Patent CA-2233609-A1 (CA)
Inventor: MATSUMOTO ROGER LEE KEN
IPC: C04B35/80
Filed: 1996-10-04
Abstract: Ceramic bodies may be prepared using a combination of thin structure formation techniques and metal oxidation techniques. Specifically, a thin form is provided comprising at least one parent metal, at least one organic or inorganic fiber, and optionally comprising at least one inorganic filler material. The thin form may then be infiltrated with a liquid or fusible composition such as a polyureasilazane to increase the flexibility and formability of the thin form. The thin form may then be shaped or configured, either individually or in stacks, and rigidized to form for example, a self-supporting structure. The thin form may then be heated to a temperature above the melting point of the parent metal to react the molten parent metal in situ with an oxidant to form an oxidation reaction product, which is at least partially three-dimensionally interconnected to form a thin ceramic body in a desired shape or configuration.
Patent CA-2233918-A1 (CA)
Inventor: EASTON DAVID JOSEPH
IPC: F16H61/28
Filed: 1998-05-01
Abstract: A powershift transmission includes a plurality of hydraulically operated clutch packs which are selectively engaged and disengaged to enable various gear ratios. A co ntrol circuit for such a transmission includes a system pressure source, a fluid reser voir, a control gallery, a plurality of control valves and a plurality of latching valves. Each control valve and each latching valve is connected with a corresponding one of the clutch packs, a nd is communicated with each other, with the system pressure source, with the reservoi r and with the control gallery. The control valves, latching valves and the control gallery cooperate to prevent pressurization of any one of the clutch packs before all the clutch pack s are filled with hydraulic fluid. The control valves and the latching valves also cooperate to maintain disengaged clutch packs at reservoir pressure, and to maintain engaged clutch pa cks at system pressure.
Patent CA-2234090-A1 (CA)
Inventor: PAWSON ANTHONY
IPC: G01N33/566
Filed: 1996-10-10
Abstract: A novel ligand regulatory pathway is disclosed and methods of activating the novel pathway in a cell expressing a ligand for an Eph subfamily receptor tyrosine kinase protein. Methods are provided for identifying substances capable of activating the ligand regulatory pathway. Therapeutic methods for affecting neuronal development and regeneration and pharmaceutical compositions using the substances and Eph subfamily receptor tyrosine kinase proteins are also described.
Patent CA-2234991-A1 (CA)
Title: System and method for storing and processing date information which spans more than one century
Inventor: CHAMBERS ROBERT M
IPC: G06F1/14
Filed: 1998-04-16
Abstract: A system for reading and writing overloaded dates is provided in which six digits are used to represent dates including century information in a manner which maintains sorting and indexing. A three digit prefix is determined from the year and century information using windowing if necessary, and a three digit suffix is determined from the day and month information.
Patent CA-2235391-A1 (CA)
Title: Water distribution tray for a pad-type humidifier unit
Inventor: KENSOK TIMOTHY J
IPC: F24F6/04
Filed: 1998-04-20
Abstract: An in-duct humidifier has an evaporative pad onto the top of which water is dripped. Air passing through the pad evaporates the water to thereby increase the air's humidity. An improved tray for dripping the water onto the top of the pad has a sloped floor in which are a number of holes. A nozzle assembly which is mounted directly on the top of the tray and an improved arrangement of walls on the tray floor assists in delivering equal amounts of water to all of the holes, resulting in even distribution of water throughout the pad and more efficient operation of the humidifier.
Patent CA-2236081-A1 (CA)
Title: Method for removing h2s from a finished liquid petroleum product
Inventor: CRIGHTON DOUGLAS IAN
IPC: C10G25/00
Filed: 1998-04-27
Abstract: A method for removing H2S from a finished liquid petroleum product, such as a jet or other fuel, comprises passing the product through a bed of micropore sized activated carbon in which H2S is captured.
Patent CA-2239676-A1 (CA)
Title: Automated mapping of facial images to animation wireframes topologies
Inventor: KANG SING BING
IPC: G06T15/04
Filed: 1998-06-05
Abstract: A method for mapping a digitized image of a face to a wireframe is provided. The wireframe is composed of a plurality of nodes connected by lines. The method includes the steps of detecting a plurality of facial features from the plurality of pixels of a reference facial image. Corresponding facial landmark nodes in the wireframe topology are determined. A transform between the facial features and the landmark nodes is computed to map the wireframe topology to reference facial image. The reference facial image and a target facial image are cropped using a bounding box. The cropped reference facial image is registered with the cropped target facial image to determine a displacement field. The displacement field is applied to the mapped wireframe topology for the reference facial image to map the target facial image to the wireframe topology.
Patent CA-2239970-A1 (CA)
Title: Process for preparing optically active compounds
Inventor: IKARIYA TAKAO
IPC: C07C35/37
Filed: 1996-12-06
Abstract: A novel and practically excellent process for preparing optically active compounds, such as optically active alcohols or amines, useful for various applications of, for example, synthetic intermediates of pharmaceuticals liquid crystalline materials, and reagents for optical resolution, wherein a hydrogen transfer type asymmetric reduction is carried out in the presence of both a transition metal complex and an optically active nitrogen compound or a transition metal complex having an optically active nitrogen compound as an asymmetric ligand, and a hydrogen-donating organic or inorganic compound. Further, optically active secondary alcohols are prepared from racemic secondary alcohols or meso-diols by a hydrogen transfer oxidation.
Patent CA-2240860-A1 (CA)
Title: Low compressibility carbon nitrides
Inventor: HEMLEY RUSSELL J
IPC: C01B21/082
Filed: 1996-12-19
Abstract: A cubic form of C3N4 with a zero-pressure bulk modulus exceeding that of diamond. Also a process for preparing such product which comprises combining carbon and nitrogen at a pressure of 120,000 to 800,000 atmosphere and a temperature of 1000-3000°C. Carbon particles may be immersed in liquid nitrogen and the mixture heated by a laser beam followed by quenching. The nitride of the invention is considered to be harder than diamond and, therefore, suitable for use as a superabrasive composition and for wear-resistant coatings.
Patent CA-2241057-A1 (CA)
Title: Articles with gripping surfaces
Inventor: COOPER ROBERT W
IPC: A47G23/03
Filed: 1998-06-18
Abstract: Chair cushions and placemats are formed of a top fabric panel attached to a bottom panel with a high coefficient of friction.   The bottom panel is a rubberized web with an open mesh pattern.  It is formed of parallel, spaced, undulating thread-like members which extend in one direction.  First and second sets of parallel, spaced, straight thread-like members respectively extend along lines oppositely inclined relative to that direction.  The straight thread-like members intersect with the undulating thread-like members forming enlarged nodes aligned along spaced parallel lines extending in the perpendicular direction.
Patent CA-2242027-A1 (CA)
Inventor: FALCONER GRAEME
IPC: E21B34/14
Filed: 1998-06-30
Abstract: The wellbore (10) is adapted for use as a lubricator (14) for assembly of lengthy installations. The subsurface safety valve (12) is used in conjunction with a nipple (16) inserted into the wellbore (10) and held in position by a packer (20). A plug (18) is part of the nipple assembly.  Upon setting of the packer (20), two barriers downhole are created to facilitate assembly of tools such as a perforating gun in the wellbore behind two barriers. The tool such as a perforating gun (30), has a running tool (32) below it which engages the plug (18).  When the assembly is made up in the wellbore (10), the plug (18) is engaged by the running tool (32) and released from the nipple (16).  The plug (18) can then be advanced through the open subsurface safety valve (12) to the proper location for deployment of a perforating gun (30), for example.  Upon completion of the downhole procedures, such as perforating, the tools are brought uphole and the plug (18) is sealingly relatched in the nipple (16), thus recreating the necessary two barriers to permit opening the wellbore (10) at the surface to remove the assembly of the downhole tools and the running tool (32).  The plug (18) can be re-engaged as many times as necessary for installation of a variety of equipment.  The nipple (16) can then also be removed after the packer (20) is released.
Patent CA-2242484-A1 (CA)
Title: Improved method and apparatus for inventorying laboratory specimens
Inventor: BEAVERS STEVEN P
IPC: G06Q10/08
Filed: 1996-12-23
Abstract: The new method is for inventorying frozen laboratory specimens (25) used in a hospital or research center.      The method includes placing a specimen (25) at a primary location in a freezer (11), i.e., behind a particular freezer door (15), selecting an "identifier" (55) unique to that specimen (25) and displaying a symbol representing the primary location. More typically, both the storage system and the number of specimens (25) are quite large and progressively-more-specific secondary, tertiary and even sub-tertiary locations will also be displayed. A secondary location may be a rack (19) behind the door (15) and a tertiary location may be a box (21) on the rack (19). Removing the specimen (25) from the compartment (17) involves manipulating the freezer interface device, e.g., keypad (43) and screen (39), to display at least the primary location. The user may manipulate by "scrolling" the screen (39) or by entering certain specimen-identifying parameters such as a specimen description, the date of initial storage and others. An optional security arrangement can be incorporated and requires that persons attempting to place or remove a specimen must enter a personal identification number (PIN). A related apparatus is also disclosed.
Patent CA-2243424-A1 (CA)
Title: Cables with a halogen-free recyclable coating comprising polypropylene and an ethylene copolymer having high structural uniformity
Inventor: REDONDO GRIZANTE EDUARDO
IPC: C08K3/22
Filed: 1998-07-20
Abstract: A cable, in particular for power transmission, for telecommunications or for data transmission, or also combined power/telecommunications cables, wherein at least one coating layer consists of a recyclable material which is halogen-free and has superior mechanical and electrical properties. This material consists of a polymer mixture comprising: (a) a crystalline propylene homopolymer or copolymer; and (b) a copolymer of ethylene with at least one alpha-olefin having from 4 to 12 carbon atoms, and optionally with a diene; the said copolymer (b) being characterized by a density of between 0.90 and 0.86 g/cm3 and by a Composition Distribution Index, defined as the weight percentage of copolymer molecules having an alpha--olefin content within 50% of the average total molar content of alpha-olefin, of greater than 45%.
Patent CA-2245544-A1 (CA)
Inventor: BLOMKVIST OVE
IPC: C02F11/143
Filed: 1997-02-12
Abstract: On introduit en continu dans la partie supérieure d'une chambre de traitement verticale et cylindrique, des produits chimiques et des déchets organiques semi-liquides. A mesure qu'ils s'écoulent vers le bas dans la chambre, les déchets sont agités par des dispositifs de traitement à rotation rapide qui assurent également le mélange des déchets. Ces dispositifs de traitement se déplacent également dans le sens axial afin de séparer des déchets l'humidité et les gaz. L'humidité et les gaz sont évacués par la partie haute de la chambre.
Patent CA-2246138-A1 (CA)
Title: Cable connector
Inventor: PIRIZ JOSE M
IPC: H01R4/50
Filed: 1998-08-26
Abstract: An electrical connector for connecting a pair of electrical conductors in electrically conductive and mechanical engagement includes an elongate conductive body having a generally planar face and which defines a pair of spaced-apart inwardly directed cable receiving nests for accommodating the electrical conductors in spaced apart parallel relationship. The body has an open face opposite the planar face between the cable receiving nests. The connector also includes a wedge having a first end, a second end, and an elongate wedge body therebetween. The wedge is insertable through the open face between the cable receiving nests for removable engagement with the planar face so as to retentatively urge the electrical conductors into the cable receiving nests.
Patent CA-2248310-A1 (CA)
Inventor: N LSCHER CHRISTOPH
IPC: H01M8/04007
Filed: 1997-02-11
Abstract: L'invention concerne un procédé permettant d'utiliser la chaleur contenue dans des effluents gazeux d'un module de pile à combustible pour basses températures (1). Selon ledit procédé, les effluents gazeux (5) sont conduits, pour permettre la récupération d'énergie, de la pile à combustible à un condenseur (6). L'invention concerne également une installation pour la mise en oeuvre dudit procédé.
Patent CA-2248457-A1 (CA)
Title: Machine a couper et fendre le bois en longueur de toutes sortes
Inventor: CHARETTE DANIEL
IPC: B27B31/00
Filed: 1998-08-27
Abstract: L'invention sert à scie le bois en bûche et les fendre en deux, quatre, six ou plus , selon la demande. La coupeuse, fendeuse est équipée d'un verseur qui distribue les bûches coupées vers la gauche ou vers la droite dont deux têtes ajustables peuvent fendre le bois. Lorsqu'une bûche à la gauche est fendue, le verseur peut en envoyer une aussitôt à la droite et vice et versa, sans arrêter la scie de 60 pouces de diamètre de couper l'arbre en longueur.
Patent CA-2252428-A1 (CA)
Inventor: SAMAD TARIQ
IPC: G05B13/04
Filed: 1997-06-02
Abstract: An automatic tuner for control systems that produces as output values for parameters of an arbitrary controller. The controller is in a control loop so that its output effects changes in actuators and regulates a physical process.  The controller consists of either linear and nonlinear controller components or a combination of both. The tuner has a nonlinear approximator that has been optimized off-line. The off-line optimization is done without supervised learning so that desired outputs of neural network do not need to be available, and separate optimization to generate the desired outputs is not necessary. The off-line optimization can also rely on optimization criteria that are arbitrary: differentiability, convexity, even continuity of criteria are not required. The off-line optimization ensures robustness of generated controller parameters so that the input process characteristics do not need to be highly accurate. The off-line optimization is performed in such a way that the input parameters that relate to desired closed-loop system behavior include robustness parameters that can be used to effect tradeoffs between robust and nominal performance. The inputs to the nonlinear approximator consist of two sets of input parameters, either of which may be empty. A first set of input parameters can include parameters that relate to process characteristics. A second set of input parameters can include parameters that relate to desired closed-loop system behavior. The output values may be proportional and/or integral and/or derivative gains for PID-like controllers.  The output values otherwise may be parameters for delay-compensation controllers, parameters for controllers that consist of lead-lag terms in combination with PID controllers, parameters for higher-order linear controllers, discrete variables that select between different control structures, or parameters for nonlinear controllers of predetermined structure. The nonlinear approximator may be implemented as a compositional sigmoidal mapping, a multilayer perception structure, a fuzzy logic model, a radial basis function network, a polynomial expansion, or other parametrized nonlinear structure.